A couple of weeks ago, television’s circle of life was on brutally vivid display. The broadcast networks unveiled their fall lineups to advertisers and to make room for new inventory, many established shows were carted off to the TV graveyard.

Among the victims were ABC’s “Castle” and “Nashville,” a development that left fans of each in mourning. But at least both dramas had good healthy runs. Despite modest ratings from the start, “Nashville” lasted four seasons, while “Castle,” a solid Monday-night hit, aired for eight.

As I wrote recently, I’m much more disappointed when exceptional shows with loads of potential are cut down way too soon, such as “Freaks and Geeks” (1999-2000, NBC) and “My So-Called Life (1994-95, ABC), two groundbreaking series that cried out for longer runs.

Meanwhile, I encouraged you readers to fill out the list by sending me some of your favorite shows that were killed too soon, and you came through with some great examples.

It’s no surprise that many of you pointed to “Firefly,” Joss Whedon’s funky space Western starring Nathan Fillion as the captain of a renegade transport ship crew. Rudely treated by Fox, the show aired for only 14 episodes, several of which were run out of order in 2002.

“I really hated to see ‘Firefly’ have such a short run,” wrote Donna Treffers. “Everything about it was so well done — the characters, story line, music, casting, setting, costumes, etc. And Nathan Fillion went on to even more shows, which proved his popularity.”

Bill Johnson had an excellent example in “Frank’s Place,” the 1987-88 CBS comedy that featured Tim Reid as the owner of a New Orleans restaurant brimming with oddball characters.

Johnson pointed out that the show was blessed with “wonderful ensemble acting (and) a beautiful mix of personalities.” Its cancellation was “a cryin’ shame, if you ask me,” he added.

“Frank’s Place,” which often took on issues of race and class, lasted for one season of 22 episodes.

Joe Piconet still has love in his heart for “Bakersfield P.D.” (1993-94), a kooky Fox comedy that ran for only 17 episodes.

“It was an amazing show and cut far too short,” Piconet said. “With all the geekiness nowadays, maybe it would have flourished.”

Some viewers are left saddened when their favorite shows are quickly canceled. Others seek revenge. To wit: David Hughes was so ticked off when AMC pulled the plug on “Rubicon” (2010, 13 episodes), that he refused to watch, “out of protest,” AMC’s “Mad Men” (you missed a great series, David).

Several readers agreed with me that HBO’s gritty Western “Deadwood” (2004-06) deserved to live longer. Other brief HBO dramas that readers pointed to include “Carnivale” (2003-05), “Rome” (2005-07), “Hung” (2009-11) and “Looking” (2014-15). The latter show, set in the Bay Area, will offer fans some closure with a movie premiering in July on HBO.

Some readers went way back for shows that didn’t get a fair shake. For example, “The Rogues” (1964-65), an NBC series about a trio of con men, got some love. Other suggested shows that met their demise recently, including “Manhattan” (2014-16), the highly acclaimed, but largely overlooked, period piece from WGN America that recalled the top-secret project to build the nuclear bomb.

BINGE ALERT: If you missed Season 2 of “Fargo” — my pick for the No. 1 show of 2015 — you’ve got another chance to see it.

On Saturday, FX will air all 10 episodes of the critically lauded series in consecutive order. The marathon kicks off at 10 a.m. and runs through 8 p.m. and will feature “limited commercial interruption.”

Season 2 of “Fargo” whisks viewers back to 1979 in Sioux Falls, South Dakota, and Luverne, Minnesota. Lou Solverson (Patrick Wilson), a young state trooper recently back from Vietnam, investigates a case involving a local crime gang, a major mob syndicate and a small town beautician Peggy Blumquist (Kirsten Dunst) and her husband Ed (Jesse Plemons), the local butcher’s assistant.

Lawyers for a Wisconsin inmate featured in the “Making a Murderer” series on Netflix asked the U.S. Supreme Court on Tuesday to review a federal appeals court decision that held his confession was voluntary.